ProfiSeal Rubber Shaft-Bearing

Silverline and Aqualine water-lubricated rubber bearings.

Technical Features

  • continious highest rubber quality
  • close tolerances due to ground inner diameter
  • low coefficient of friction
  • low shaft-wear
  • long lifetime
  • high damping of vibrations
  • split version possible, for exchange without pulling the shaft
  • flanged bearings, special applications and stave bearings on request
  • standrat bearing shell is corrosion-ressisting naval quality brass or phenolic resin other materials on request

Applications

  • commercial and military ships
  • pleasure boats
  • dradgers
  • punmps and hydro power plants

Material

  • standart bearing shell is corrosion-ressisting naval quality brass to BS2871, Alloy CZ126 or high quality phenolic resin
  • alternative shell materials like stainless and mild steel or bronze on request
  • standart rubber is though synthetic nitril grade compunded for resilience and high oil and abrasion resistance
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Tolerances

  • inner diameter precision ground for optimum lubrication when fitted with shafts h9
  • water clearance 0,1 mm per 100 mm shaft diameter (please notify if other clearances are requested)
  • outside diamter up to 155 mm machined to ISO p6
  • outside diameter over 155 mm machined ISO h6
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Metric Series

Shaft diameter A (mm) Outside diameter B (mm) Length C (mm) Sleeve S (mm)
20
22
25
35
35
40
80
88
100
2.4
2.4
2.4
28
30
32
42
45
45
112
120
128
2.8
2.6
2.6
35
38
40
50
55
55
140
152
160
2.0
3.8
3.8
42
45
50
60
65
70
168
180
200
3.0
2.3
2.3
55
60
65
75
80
85
220
240
260
3.8
3.3
3.8
70
75
80
90
95
100
280
300
320
2.3
4.0
4.2
85
90
95
105
110
115
340
360
380
4.2
4.2
4.2
100
105
110
125
130
135
400
420
440
3.6
3.6
4.8
115
120
145
155
460
480
5.0
6.0

different sizes on request

Mixed Metric Series

Shaft diameter A (mm) Outside diameter B (mm) Length C (mm) Sleeve S (mm)
25
30
32
1.1/2″
1.3/4″
1.3/4″
100
120
128
2.4
2.4
2.4
35
38
40
1.7/8″
2″
2.1/8″
140
152
160
2.4
2.4
3.2
45
50
55
2.3/8″
2.5/8″
2.7/8″
180
200
220
3.2
3.2
2.5
60 3″ 240 3.2

different sizes on request

Imperial Series

Shaft diameter A (mm) Outside diameter B (mm) Length C (mm) Sleeve S (mm)
1″
1″
1.1/4″
1.1/2″
4″
4″
0.06″
0.09″
1.1/4″
1.1/4″
1.1/2″
1.1/2″
1.3/4″
2″
5″
5″
6″
0.06″
0.09″
0.09″
1.1/2″
1.3/4″
1.3/4″
2.3/8″
2.3/8″
2.5/8″
6″
7″
7″
0.13″
0.13″
0.13″
2″
2″
2.1/4″
2.5/8″
3″
3″
8″
8″
9″
0.13″
0.13″
0.13″

different sizes on request

Remarks
  • Silvertown bearings are accepted by all major classification societies
  • standard metric series recommended for new installations
  • for special applications split version, spiral flutes and interchangeable stave bearings are available
  • bearings available to suit shafts up to more than 1000 mm